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Kollmorgen M-805-A-99-R12-051

Model Series: M-Series (Compact Brushless Servo Motor)

Product Overview:
Compact high-dynamic brushless servo motor optimized for space-constrained applications requiring rapid response and high bandwidth. Features integrated multi-turn absolute encoder with durable construction.

Detailed content

Technical Specifications:

Parameter Value
Frame Size 85mm (M-805)
Flange Diameter 85mm
Winding Code A
Option Code 99 (Standard Configuration)
Encoder Type R12 (Multi-turn Absolute, Hiperface)
Encoder Resolution 4,096 counts/rev (12-bit single-turn) + 128 turns multi-turn
Shaft Type 051 (Keyed shaft, DIN 6885-1)
Continuous Torque 0.55 Nm
Peak Torque 1.65 Nm
Max Speed 6,000 RPM
Rated Voltage 48 VDC (winding A)
Motor Weight Approx. 0.65 kg
Protection Rating IP65 (with connector)
Thermal Time Constant ~8 minutes

Material Composition:

  • Stator: Non-oriented silicon steel laminations
  • Rotor: Neodymium Iron Boron (NdFeB) permanent magnets
  • Housing: Die-cast aluminum with anodized finish
  • Shaft: Hardened alloy steel (AISI 4340)
  • Bearings: Sealed angular contact ball bearings (pre-lubricated, lifetime)

Structural Features:

  • Compact cylindrical design with rear-facing connector
  • Keyed shaft with DIN 6885-1 profile
  • Single-cable exit (M23 connector)
  • Balanced rotor for low vibration operation

Working Principle:
Three-phase brushless commutation driven by external servo amplifier. Rotor position detected by Hiperface encoder; amplifier generates six-step or sinusoidal commutation. Multi-turn absolute encoding retains position across power cycles (128 turns = 46,080 counts total).

Key Advantages:

  • Extremely compact 85mm frame for tight spaces
  • 6,000 RPM max speed for high-speed applications
  • Multi-turn absolute encoder — no homing required after power loss
  • Keyed shaft (051) for direct coupling to gears/pulleys
  • High bandwidth suitable for fast servo loops (>1 kHz)

Applicable Industries:

  • Semiconductor equipment
  • Medical devices
  • Laboratory automation
  • Small robotics
  • Pick-and-place machines

Installation Requirements:

  • Mount using M4 mounting holes, torque to 3 Nm
  • Shaft alignment: ≤ 0.03mm TIR
  • Ambient: -10°C to +45°C
  • Minimum 50mm clearance for heat dissipation

Usage Precautions:

  • Do not apply axial loads exceeding 50 N on shaft
  • Connector pin assignment must match drive; incorrect wiring damages encoder
  • Do not operate above 6,000 RPM continuously (bearing life reduction)
  • Store with shaft protected; do not drop motor

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